1、! 1.1 ScoDe. This specification covers one type of caber .38 special revolver, six shot, double action, 2 or 4 inch barrel, solid frame, with the following options: adjustable rear sight,. quick draw ramp front sight, low spur target hammer, and target trigger. ._ * 2.1 The following documents of th
2、e issue in effect on date of invitation for bids or request for proposal, form a part -of the specification to the extent specified herein: SPECIFICATIONS Federal . Steel Bars, Alloy, Hot Rolled, Cold Finished (General .Purpose) QQ-S-624 Military Weapons, Small Arms, General Specification for Revolv
3、ers, Packaging of, General Specification for MT-w-13855 MIL-P-14313 - MILSTD -105 KCL-STD-10 9 MILSTD-130 Sqling Frocedures and Tables. for Inspec tion of Attribut eS Quality Assurance Terins and Definitions Identification IimIng of U.S. MXLitary Property Provided by IHSNot for ResaleNo reproduction
4、 or networking permitted without license from IHS-,-,-I I I MIL-R-777A 10 m 7799706 0272747 5 * )EL-R - 997 9A (US AF) I i (Copies of specifications, standards, drawings, and publlcat.ions required i by suppliers in connection with specific procurement .functions shoud be officer. ) 2.2 Other Public
5、ations. - on date of invitation for bids; form a part of this. specification: obtained from the procuring activity or as directed by the contracting i ._ The following publications, of %he issue in effect . National Bureau of Standards Handbook H28, Screw-Thread Standards for Federa Services (Applic
6、ation for copies should be addressed to Superintendent of Documents, Government Printing Office, Washington D. C. ) 3. RJ32UIRF;MENTs . 3.1 Performance and Product Characteristics. The-revolver shall be new and _ . shall have the capability of holding three bullets within a two inch diameter: group
7、at 2s yards when mounted in a machine rest. 3.1.2 Manufacturers Models. The contractor shall forward the procuring . agency three manufacturers models of each type of revolvers to be manu- factured in accordance with Military Specification Mn-W-l381;5. 3.2 Design. action type and shall be machined,
8、finished and assembled to the highest quality practical. The design of the revlver shall be of the latest double tured equal loads 3.3.2 black 3.2.1 Requirements. Components and assemblies shall cor,form to the require- ments of this specification and Specification tL-W-138s5. 3.3 Naterias. Material
9、s shall be as specified herein. Materials not specifically designated shall be of the highest commercial quality. 3.3.1 Metal Parts. highstress loads such as the frame, cylinder and barrel shall be manufac- from steel, Federal Specification QQ-S-624, or a suitable substitute Au. parts of the revolve
10、r wbich will be subjected to to or better than. will be manufactured from good quality steel. P-ats other than those-subjected to high stress Wood Parts. Al wood used for revolver stocks shall be good quality walnut. . . 3.4 Construction. 3.4.1 Forgings. andother defects that may adversely affect th
11、e structural strength of the parts involved. Zorgings shall be adequate to meet the serfomace reqiiirements specified herein. Forgings shall be free from scale, cold shuts, mismatching, Strength and other essential physical ?roperties of the No castings of zny type shall be permissijle. Provided by
12、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-79?7A LO m 7797706 0272748 7 m 3.4.2 Threads. book H2-e of American Standard thread form. All threaded parts shall conform to requirements of Hand- 3.4.3 Interchangeability. All parts shall be manufactured to
13、 definite Standards, clearances, and tolerances in order that any such parts of the. model furnished can be replaced or adjusted without requiring modification; 3.4.4 General Characteristics i General charcteristics -shall be in accordance with Table I and Table II. Turn I Barrel LengLh Overall Leng
14、th Total Weight 3ABm II Barrel Length Overall Length Total Weight ._ 2 inches 7 inches (approx) Not less than 25 nor more than 29 ounces 4 inches 9 inches (approx) Not less than 32 nor more than 36 ounces 3.4.5 Barrel. rings, and other defects. used in the manufacture of barrels shall conform to the
15、 physical properties specified in Table III. The barrel bore shall be smooth and free of scratches, pits, Steel Chemical properties sl+U be as specified in 3.3.1. The lands shall be kharp and well defined. TABU III Tensile Strength i0,ooo Ps:. mui. Rockwell Hardness C Scale Reduction in Area Elalgat
16、ion in 2 inches 40 per cent; min, 15 per cent min. 31 to 35 3.4.6 Cylinder. scratches, pits; rings and other defects that may affect proper functioning. Steel used in the manufacture of cylinders shall conform to the physical properties specified in Table III, specified in 3.3.1. 3.4.7 Firing Pin. f
17、ormed and shall give proper protrusion to ensure proper cartridge ignition. Cylinder chambers shall -be smooth and free of burrs, Chemical properties shall be as The point of the firing pin sha71 be smooth and well 3.4.8 Front Sight. sight with blade round or ramped to prevent catching in the holste
18、r when the revolver is withdram. bqrel, machined from the same piece of steel during manufacture. Revolvers shall be equipped with a quick draw front The front sight shall be an integral part of the Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M.I
19、L-R-99,lA (WU) 3.4.9 Rear Sight. adjustable rear sight so designed as to provide forboth horizontal and vertical adjustment . Revolvers shall be equipped -xiractor Rod Xangfires (see 4.5.2) Loose Barrel Esfires (see 4.5.2) Pierced Primers Sear Disengagement Hammer Block Failure Cylinder Action Failu
20、re Other Malfunctions Unserviceable Parts Barrel Cylinder Mrac t or Extractor Ratchet Frame Hand Latch Spring - Main SpEing Striker. (Firing Pin) - Other Parts 4. QUALITY ASSURANCE. PROVISIONS Number Permitted in the . Endurance Test Second 1000 First 1000 - Rounds Rounds 1- . 2 O. O 1 O O 0. 2 O O
21、O .o .O O O O O 1 O O O O O O O O 1 2 4.1 General.Quality Assurance Provisions. The supplier is responsible for the performance of Each revolver shall be tested for cylinder action. The cylinder shall not rotate when a rotational force is applied alternately in the clockwise and counter-clockwise di
22、rections. revolver is cocked, the cyfinder shail rotate and lock into firing position. When locked into firing position, a chamber shall be aligned with the striker and the bore of the barrel. linearly when the trigger (single action) is pulled. When the The cylinder shtil not rotate or move 4.4.3 P
23、roof Firing Test. Each assembled revolver shall be subjected to the firing of one proof cartridge under supervision of the inspector. In addi- tion, 25 revolvers taken at random from each lot shall have each chamber of the cylinder loaded separately and proof fired. inder to satisfactorily pass the
24、proof firing test shall be cause for proof firing of each cylinder in the lot. the proof firing test shall be cause for rejection of the lot. Failure of any one cyl- ,. Failure of a second cylinder to pass 6 ,- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
25、 IHS-,-,-4.4.3.1 Ammunition. Cartridges containing the standard commercial proof load of 27,000 to 30,000 psi shdi be used in the high pressure test. Amrminition to be used for all other firing tests shallbe as specified in procurement documents (see 6.1); the munition specified for these firing tes
26、ts shall be of the same type intended for use to ensure targeting per- formance in service use consistent with that obtained during acceptance testing . 4.4.4 Function Kring Test. by iring at least six rounds of ammunition. be fired single action, and the last three rounds shall be fired double acti
27、on, Each revolver shall be tested for functionirig The first three rounds shail 4.4.5 Accuracy Test. At a range of 25 yards, and using a machine rest, each revolver shall be fired a series of three rounds for accuracy. All shots shall be within or cut the edge of a circle two inches in diameter cent
28、ered on the point of aim. . 4.4.6 Endurance Test. 4.4.6.1 revolvers and at least one revolver so selected from each successive 3,000 revolvers, found satisfactory in other tests, shall be considered as a representative weapon and shall be subjected to an endurance test of 2,000 rounds. Five hundred
29、rounds shall be fjred single action and the remainder shaU be fired double action. . One revolver selected by the inspector from the first 500 %- 4.4.6.2 The revolver nay be cleaned and oiled after each 500 rounds or No. part shall be replaced except those at the close of a days firing. parts broken
30、 or worn to the extent that they are unserviceable. shall te kept of each malfunction and part replacement. Records 4.4.6.3 Unless otherwise specified, endurance tested revolvers shall be shiFsed to the procuring agency for further examination. shall be in adciition to thequantity to be delivered ss
31、ecified in the contract. These revolvers * L.h.7 Harmer Block Test. Each revolver shail ke tested to determine the effectiveness or“ the nmer block, surface, Thth no provision for a primer) in the cylinder and a piece of masking tape over the area where the prher is normally located. the revolver an
32、d strike the trigger shaqly ad sufficiently for the sear to disengage the hammer. Place a duminy cartridge head (smooth Cock The tape shall not be scarred. 4.5 Re-inspection and Retests. 4.3.1 Zejections. Revolvers rejected individu-y or by lots because of inspection or any test except the endurance
33、 test may be conditioned ana resubmitked for inspection or test in which failure occurred and such other inspection tests deemed necessary by the government inspector. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-VIL-R-7977A LO m 9397706 0272753
34、 O m- iGL-R-997 9A (WAF) 4.5.2 Hagfires and Itisfires. of the tests, the revolver shall be checked for proper firing pin protrusion and shpe. these tests reveal a nonacceptable condition, the revolver shall not be accepted until properly corrected. 4.5.3 DeTective hidtion. Malfunctions in any tests
35、assignable to defec- tive mimition shall not count against the revolver being tested. 4.5.4 En6urznce Retest. to meet the specified requirements in the endurance test, a retest shall be made, unless in the opinion of the inspector the fli3ure incicates serious defects in -Lhe revolvers, in which cas
36、e retest shall be nade only if authorized by the procuring agency. shall select another revolver for the purpose from the lot under considera- tion. If a retest is not made or the revolver selected therefor fails in the retest, the lot or lots shall be rejected subject io conditioning and further te
37、st, Two revolvers from each conditioned lot shall be subjected to the endurance test. If hangfbes and misfires occur during any If The main spring shall also be checked for correct tension. If the revolver representing any lot or lots fails. . In case a retest is nade, the inspector 5. PREPARATION F
38、OR DELIVERY 5.1 Revolvers shall be prepare for shipment as speci5ed in specification MIL-P -14313 6. NOTES 6.1 Ordering Data. Procurement documents should specify the following: a. b. - c. d. e. Title, number and date of this specification Length of barrel (see 1.1 and 3.4.4) Type of trigger (see 1.
39、1 and 3.4.n) Tyye of Hammer (see 1.1 and 3.4.10) Narkings on revolver (if other than specified in 3.4.13) f. Type of munition to be used (see 4.4.3.1) 5:- 6.2 The margins of this specification are marked with an asterisk to indi- cate where changes (additions, modifications, corrections, deletions)
40、from the previous issue were made. This-was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the require- ments of this document based on the entire content irrespective of the mar
41、ginal notations ad relationship to the last previous issue. . 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-R-7977A 20 999990b 0292754 2 Custodian : Air Force - (84) Reviewer : Air Force - (84) Prepring ActiviS.: Ai:r Force - (84) Project Number: . lOO5-F398 . . .- - ,. -. . .- . 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
